Joshua Lederberg and Edward Tatum Discovered a Sex-Like Process in Bacteria

Joshua Lederberg and Edward Tatum discovered a sex-like process in bacteria using:

A) high-powered microscopy in combination with antibiotic resistant genes.
B) populations of cells with complementing auxotrophs,and the measurement of the generation of prototrophs during microbial mixing.
C) mutations in bacteria that inhibit the mating process.
D) comparison of bacterial behavior to yeast behavior.
E) chromosome sequencing and analysis.